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Loans and Allowance for Loan Losses (Details 8) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | $ 13,084 | $ 12,735 | $ 13,211 | $ 13,030 | $ 13,019
Recognized interest income | 166 | 183 | 532 | 478 | 637
Commercial [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 8,799 | 10,002 | 8,893 | 10,286 | 9,222
Recognized interest income | 114 | 140 | 353 | 397 | 465
Commercial [Member] | Owner occupied RE [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 2,786 | 2,182 | 2,792 | 2,198 | 2,255
Recognized interest income | 41 | 25 | 103 | 78 | 104
Commercial [Member] | Non-owner occupied RE [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 3,048 | 4,322 | 3,070 | 4,503 | 4,144
Recognized interest income | 29 | 57 | 127 | 154 | 199
Commercial [Member] | Business [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 2,965 | 3,498 | 3,031 | 3,585 | 2,823
Recognized interest income | 44 | 58 | 123 | 165 | 162
Commercial [Member] | Construction [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment |  |  |  |  |
Recognized interest income |  |  |  |  |
Consumer [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 4,285 | 2,733 | 4,318 | 2,744 | 3,797
Recognized interest income | 52 | 43 | 179 | 81 | 172
Consumer [Member] | Other [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 162 | 176 | 164 | 178 | 174
Recognized interest income | 1 | 1 | 4 | 4 | 6
Consumer [Member] | Real estate [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 2,850 | 2,361 | 2,871 | 2,370 | 2,047
Recognized interest income | 34 | 40 | 114 | 73 | 69
Consumer [Member] | Home equity [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment | 1,273 | 196 | 1,283 | 196 | 1,576
Recognized interest income | 17 | 2 | 61 | 4 | 97
Consumer [Member] | Construction [Member] |  |  |  |  |
Average recorded investment and interest income recognized on impaired loans |  |  |  |  |
Average recorded investment |  |  |  |  |
Recognized interest income |  |  |  |  |

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